Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Switching method and mould for crosslinked polyethylene insulated power cable

A cross-linked polyethylene and power cable technology, which is applied in the direction of connecting/terminating cable equipment, etc., can solve the problems of serious economic loss, damage, cross-linked polyethylene insulated power cable finished or semi-finished products with unqualified withstand voltage, etc. Achieve obvious economic and social benefits

Inactive Publication Date: 2010-11-03
圣安电缆有限公司
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the cable manufacturing plant, whether it is in the manufacturing process or in the operation process, there will inevitably be manufacturing defects or due to collisions, the finished or semi-finished XLPE insulated power cables will fail to withstand voltage (breakdown) ) or damage
Under the current circumstances, the manufacturer can only saw it into sections, and those finished or semi-finished products whose length does not meet the requirements can only be scrapped, and the economic loss is very serious.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Switching method and mould for crosslinked polyethylene insulated power cable
  • Switching method and mould for crosslinked polyethylene insulated power cable
  • Switching method and mould for crosslinked polyethylene insulated power cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment 1, the length of the cable is not enough, the connection method of the cross-linked polyethylene insulated power cable connecting two cables into one:

[0034] 1) Conductor connection

[0035] The conductors are connected by layered silver soldering, and the solder points of each layer are staggered from each other. When welding, the two ends of the conductor are cooled with cooling water, and the diameter of the welding part is equal to that of the cable conductor;

[0036] 2) Conductor shielding and pre-vulcanization

[0037] Borrowing a special mold, the conductor shield vulcanization mold is composed of an upper mold 11 and a lower mold 12 to form a cylinder. The diameter of the round hole formed by the upper and lower mold bodies is slightly larger than the outer diameter of the conductor shield. The operation is as follows:

[0038] a. Clean the surface of the conductor, wrap it on the cable conductor in two layers with a semi-conductive tape, and over...

Embodiment 2

[0056]Embodiment 2, partial splicing, when the cable is bumped or damaged during transportation, there is no need to carry out the overall splicing of the cable, only a few steps in the splicing method are needed.

[0057] Insulation damage, referring to Example 1, starting from the third step, that is, insulation extrusion, and completing the subsequent steps;

[0058] Conductor shielding is damaged. Referring to Example 1, start from the second step, that is, conductor shielding and pre-vulcanization, and complete the subsequent steps.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

This invention relates to cross polyethylene insulation power cable connection method in electricity industry, which comprises following steps: conductor connecting; conductor shielding and previous fulguration; insulation pressing; insulation fulguration; shield mask and repairing. The invention can connect two sections of cable or repair damaged part to ensure backward cable property standards.

Description

technical field [0001] The invention relates to a splicing method for cross-linked polyethylene (XLPE) insulated power cables and a special mold for the splicing method, belonging to the field of electrical engineering. technical background [0002] XLPE insulated wires and cables are popular due to their excellent electrical properties, high allowable operating temperature of conductors (90°C), large transmission capacity, simple structure, convenient installation and laying, no drop limit, and especially no risk of fire caused by oil leakage. The majority of users are welcome. [0003] In the cable manufacturing plant, whether it is in the manufacturing process or in the operation process, there will inevitably be manufacturing defects or due to collisions, the finished or semi-finished XLPE insulated power cables will fail to withstand voltage (breakdown) ) or damage. In the current situation, the manufacturer can only saw it into sections, and those finished or semi-fi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H02G1/14
Inventor 马正厚闫永万孙萍孙永军凌鸿
Owner 圣安电缆有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com